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n = int(input())

i = 0
c = 0
bins = {}
while c < n:
    i += 1
    b = bin(i).count('1')
    c += b
    bins[i] = b

x = c - n
if x == 0:
    print(len(bins))
    print(*reversed(bins))
else:
    delete = []
    for i, b in reversed(bins.items()):
        if b <= x:
            x -= b
            delete.append(i)
            if x == 0:
                break

    for key in delete:
        del bins[key]

    print(len(bins))
    print(*reversed(bins))